diff --git a/.github/README.md b/.github/README.md
index 5ac5a25..3af8c3a 100644
--- a/.github/README.md
+++ b/.github/README.md
@@ -1,12 +1,11 @@
-# go-test-sarif and go-test-sarif-action
+# go-test-sarif
 
-`go-test-sarif` is a CLI tool and GitHub Action for converting `go test -json` output into SARIF format,
+`go-test-sarif` is a CLI tool for converting `go test -json` output into SARIF format,
 making it compatible with GitHub Security Tab and other SARIF consumers.
 
 ## 🚀 Features
 
 - Converts `go test -json` output to **SARIF format**.
-- **GitHub Action integration** for CI/CD pipelines.
 - Generates structured test failure reports for **security and compliance tools**.
 - Works as a **standalone CLI tool**.
 
@@ -18,12 +17,6 @@ making it compatible with GitHub Security Tab and other SARIF consumers.
 go install github.com/ivuorinen/go-test-sarif-action@latest
 ```
 
-### Using Docker
-
-```sh
-docker pull ghcr.io/ivuorinen/go-test-sarif-action:latest
-```
-
 ## 🛠️ Usage
 
 ### CLI Usage
@@ -33,35 +26,10 @@ go test -json ./... > go-test-results.json
 go-test-sarif go-test-results.json go-test-results.sarif
 ```
 
-### Docker Usage
-
-```sh
-docker run --rm -v $(pwd):/workspace ghcr.io/ivuorinen/go-test-sarif-action go-test-results.json go-test-results.sarif
-```
-
-### GitHub Action Usage
-
-Add the following step to your GitHub Actions workflow:
-
-```yaml
-- name: Convert JSON to SARIF
-  uses: ivuorinen/go-test-sarif-action@v1
-  with:
-    test_results: go-test-results.json
-```
-
-To upload the SARIF file to GitHub Security Tab, add:
-
-```yaml
-- name: Upload SARIF report
-  uses: github/codeql-action/upload-sarif@v2
-  with:
-    sarif_file: go-test-results.sarif
-```
-
 ## 📜 Output Example
 
 SARIF report example:
+
 ```json
 {
   "version": "2.1.0",
@@ -100,9 +68,10 @@ SARIF report example:
 ## 🏗 Development
 
 Clone the repository and build the project:
+
 ```sh
 git clone https://github.com/ivuorinen/go-test-sarif-action.git
-cd go-test-sarif
+cd go-test-sarif-action
 go build -o go-test-sarif ./cmd/main.go
 ```
 
@@ -118,4 +87,4 @@ This project is licensed under the **MIT License**.
 
 ## 🤝 Contributing
 
-Pull requests are welcome! For major changes, please open an issue first to discuss the changes.
+Pull requests are welcome! For major changes, open an issue to discuss them.
diff --git a/.github/workflows/publish-immutable-actions.yml b/.github/workflows/publish-immutable-actions.yml
deleted file mode 100644
index feaa083..0000000
--- a/.github/workflows/publish-immutable-actions.yml
+++ /dev/null
@@ -1,24 +0,0 @@
----
-# yaml-language-server: $schema=https://json.schemastore.org/github-workflow.json
-name: 'Publish Immutable Action Version'
-
-on:
-  release:
-    types: [published]
-
-permissions: read-all
-
-jobs:
-  publish:
-    runs-on: ubuntu-latest
-    permissions:
-      contents: read
-      id-token: write
-      packages: write
-
-    steps:
-      - name: Checking out
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-      - name: Publish
-        id: publish
-        uses: actions/publish-immutable-action@4bc8754ffc40f27910afb20287dbbbb675a4e978 # v0.0.4
diff --git a/.github/workflows/release-new-action-version.yml b/.github/workflows/release-new-action-version.yml
deleted file mode 100644
index 1e0c119..0000000
--- a/.github/workflows/release-new-action-version.yml
+++ /dev/null
@@ -1,26 +0,0 @@
----
-# yaml-language-server: $schema=https://json.schemastore.org/github-workflow.json
-name: Release new action version
-
-on:
-  release:
-    types: [released]
-
-env:
-  TAG_NAME: ${{ github.event.release.tag_name }}
-
-permissions: read-all
-
-jobs:
-  update_tag:
-    name: Update the major tag to include the ${{ env.TAG_NAME }} changes
-    environment:
-      name: releaseNewActionVersion
-    runs-on: ubuntu-latest
-    permissions:
-      contents: write
-    steps:
-      - name: Update the ${{ env.TAG_NAME }} tag
-        uses: actions/publish-action@f784495ce78a41bac4ed7e34a73f0034015764bb # v0.3.0
-        with:
-          source-tag: ${{ env.TAG_NAME }}
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index ef38fd9..a2872db 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -28,10 +28,7 @@ jobs:
         run: go test -json ./... > go-test-results.json
 
       - name: Convert JSON to SARIF
-        uses: ivuorinen/go-test-sarif-action@58ffaaacdb178a5d053f8e8c2693966422a3ecda # v1
-        with:
-          input_file: go-test-results.json
-          output_file: go-test-results.sarif
+        run: go run ./cmd/main.go go-test-results.json go-test-results.sarif
 
       - name: Upload SARIF to GitHub Security Tab
         uses: github/codeql-action/upload-sarif@181d5eefc20863364f96762470ba6f862bdef56b # v3.29.2
diff --git a/Dockerfile b/Dockerfile
deleted file mode 100644
index 30c9bb0..0000000
--- a/Dockerfile
+++ /dev/null
@@ -1,10 +0,0 @@
-FROM golang:1.24-alpine AS build
-WORKDIR /app
-COPY . .
-RUN go build -o /go-test-sarif ./cmd/main.go
-
-FROM alpine:3.22.0
-COPY --from=build /go-test-sarif /go-test-sarif
-COPY action/entrypoint.sh /entrypoint.sh
-RUN chmod +x /entrypoint.sh
-ENTRYPOINT ["/entrypoint.sh"]
diff --git a/action.yml b/action.yml
deleted file mode 100644
index 792d87c..0000000
--- a/action.yml
+++ /dev/null
@@ -1,22 +0,0 @@
-name: 'Go Test to SARIF Converter'
-description: 'Converts Go test JSON output to SARIF format.'
-
-author: 'Ismo Vuorinen'
-branding:
-  icon: "check"
-  color: "green"
-
-inputs:
-  input_file:
-    description: 'Path to the Go test JSON results file.'
-    required: true
-  output_file:
-    description: 'Path where the SARIF output should be saved.'
-    required: true
-
-runs:
-  using: "docker"
-  image: "docker://ivuorinen/go-test-sarif-action:v1"
-  with:
-    input_file: ${{ inputs.input_file }}
-    output_file: ${{ inputs.output_file }}
diff --git a/action/entrypoint.sh b/action/entrypoint.sh
deleted file mode 100755
index d5fbbbc..0000000
--- a/action/entrypoint.sh
+++ /dev/null
@@ -1,13 +0,0 @@
-#!/bin/sh
-set -e
-
-if [ -z "$INPUT_TEST_RESULTS" ]; then
-  echo "Missing test results input file"
-  exit 1
-fi
-
-OUTPUT_FILE="go-test-results.sarif"
-
-/go-test-sarif "$INPUT_TEST_RESULTS" "$OUTPUT_FILE"
-
-echo "Generated SARIF report: $OUTPUT_FILE"